S811+U50N3S Eaton Soft Starter

The Eaton S811+ soft starter, model S811+U50N3S, is intended for three-phase motor starting requirements in industrial systems. Its 500 A rating and U-frame construction suit high-capacity applications, including motors up to 400 hp at 480 V. The operating voltage range is 200–600 V with a 47–63 Hz input frequency. An integrated digital interface module provides an LCD display and Modbus RTU communication, while a 24 Vdc control supply supports the unit’s control functions. The unit is designed for use with Class RK5 or Class J fuses, or an HLD circuit breaker. Its compact design and motor protection features suit demanding industrial motor-control installations.